Replaced the map sensor twice and still getting code 33?? Car runs great until its gets hot an then it stalls or when I hit 40 I get the check engine light to come on.. Not sure what to check?? I checked all vacuum lines I think but I am going to do it again.. I replaced the egr and the tps and even the iac.. ?????

Make sure you reset the ecm, the connector should be by the battery its a one pin weather pack connector. If you cant find it disconnect the negative cable from the battery for about a minute. This will clear all the codes from the ecm. Drive the car for a bit after that and see if the codes still pop up.

Buy my cable - 12 pin to USB. Load TunerPro RT (free version included) on your laptop and scan your engine. Look at what the MAP sensor is doing. Look at what the MAP sensor is doing when the trouble is happening and troubleshoot it.
http://reddevilriver.com/aldl.html


Alternative - Run a wire to the Green wire of your MAP sensor. Figure out some way to back probe the MAP sensor that will stay solid in there. Read the voltage on your MAP sensor and watch for it to wack out. .9v ish is fine. Anytime it's jumping up like 4.5 to 5v is trouble unless you have the throttle wide open.

If the Black wire of the MAP sensor is not making a good connection it could be causing this trouble. Inspect the harness for any damage. Look near the belts.